X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Data%2FEither.hs;h=d8a35b57a912a1b4bdbb2544d741e46e5d21bce5;hb=f7a485978f04e84b086f1974b88887cc72d832d0;hp=ea91a48da45b348193cf6e4e0f24357c46d9e83e;hpb=5545727d5a6a1fc6d5d00f32a92a8fdf0fb7ca77;p=ghc-base.git

diff --git a/Data/Either.hs b/Data/Either.hs
index ea91a48..d8a35b5 100644
--- a/Data/Either.hs
+++ b/Data/Either.hs
@@ -1,16 +1,14 @@
 {-# OPTIONS -fno-implicit-prelude #-}
 -----------------------------------------------------------------------------
--- 
+-- |
 -- Module      :  Data.Either
 -- Copyright   :  (c) The University of Glasgow 2001
--- License     :  BSD-style (see the file libraries/core/LICENSE)
+-- License     :  BSD-style (see the file libraries/base/LICENSE)
 -- 
 -- Maintainer  :  libraries@haskell.org
 -- Stability   :  experimental
 -- Portability :  portable
 --
--- $Id: Either.hs,v 1.2 2001/07/03 11:37:49 simonmar Exp $
---
 -- The Either type, and associated operations.
 --
 -----------------------------------------------------------------------------
@@ -21,5 +19,11 @@ module Data.Either (
  ) where
 
 #ifdef __GLASGOW_HASKELL__
-import GHC.Maybe
+import GHC.Base
 #endif
+
+data  Either a b  =  Left a | Right b	deriving (Eq, Ord )
+
+either                  :: (a -> c) -> (b -> c) -> Either a b -> c
+either f _ (Left x)     =  f x
+either _ g (Right y)    =  g y